[Suggestion] Ability Types in 3*

Well not exactly for 3* characters and higher, but more interesting ideas like Daredevil gave me a few more ideas for ability effects. Mind you this is just a brainstorming session and so, numbers aren't added to them:

Damaging opponent AP stack
Apart from Black Widows espionage and recon skills, players don't have much control here. It'd be nice to have abilities like the Hammer dudes skills that attack your AP stack for more control skills

Altering opponent/player damage specific to certain colors
For example, a skill that reduces an enemy's green matching damage and simultaneously increasing your own green damage.

Changing battlefield/Better environment effects
There are lots of Marvel heroes known for their great battlefield sense, and this kind of ability would work great thematically for them. Environment tiles are a bit too static for my liking, and seems boring in comparison to the colored tiles. A hero that takes advantage of environment tiles more would be nice.

Color Protection
Effects that can temporarily reduce damage from a specific color source, both from skills and matching damage. Like color specific shield tiles.

Countdown tiles with active abilities
Countdown tiles that have a strong ability while they are on the board, but disappear on their own after a set time if not matched. Like something that deals a great deal of damage every turn, but only last 3 turns.

Tiles that transform other tiles when matched
Pretty self explanatory. On it's own it could be harmless, but when matched it either turns surrounding tiles a different color, or into a strike/protect tile.